50
3 AUDIO
1 MIC GAIN
You can adjust the input level of the built-in microphone or an optional external micro-
phone.
1. Press and hold the [
F
MENU
] key
touch [
TX/RX
]
[
3 AUDIO
]
[
1 MIC GAIN
]
2. Rotate the DIAL knob to select the desired microphone sensitivity level.
3. Select a microphone gain level from LEVEL 1 to LEVEL 9.
Remark
The default setting: LEVEL 5
• Increasing the microphone gain excessively can distort the sound or pick up the
surrounding noise, impairing intelligibility.
• Be sure to check the microphone gain whenever the microphone is changed.
2 MUTE
In dual receive mode, while receiving signals in the operating band and subband at the
same time, the subband can be automatically muted (100%, 50%, 30%) or not muted.
1. Press and hold the [
F
MENU
] key
touch [
TX/RX
]
[
3 AUDIO
]
[
2 MUTE
]
2. Rotate the DIAL knob to select the desired mute setting.
OFF
Disable the muting audio.
MUTE 30%
Mute the audio level set to 30%.
MUTE 50%
Mute the audio level set to 50%.
MUTE 100% Mute the audio level set to 100%.
Remark
The default setting: MUTE 100%
3 RX AF DUAL
Set the time to resume radio broadcast reception after transmit/receive when using simul-
taneously receive mode.
Press and hold the [
F
MENU
] key
touch [
TX/RX
]
[
3 AUDIO
]
[
3 RX AF DUAL
].
4 SP SELECT
Speaker operation switching settings when connecting to an External SP/MIC or an
Earpiece Microphone.
1. Press and hold the [
F
MENU
] key
touch [
TX/RX
]
[
3 AUDIO
]
[
4 SP SELECT
]
2. Rotate the DIAL knob to select the desired setting.
AUTO
The receiver audio is heard only from only the external SP/MIC.
FIX
The receiver audio is heard from both the external SP/MIC and the of
the transceiver speaker.
Remark
The default setting: AUTO
